Many Aegir users ask whether there is a way to schedule backups of all sites provisioned in Aegir. Currently at the time of writing, no such scheduling exists within Aegir itself, since we have a few design decisions to work out (such as where to store the backups, especially when multi-server comes in!)
For the meantime, here's a crude little shell script that might help you. You should execute it as the aegir user.
I did a screencast on how you can use Drush Make to generate 'builds' based on Drupal core, with optional components such as install profiles + module/theme/library dependencies. The example given is the Managing News news aggregation system.
I then show how you can add the build as a Platform in Aegir, and rapidly provision sites on it in a multisite structure.
Here's a simple perl script that uses curl to search for a regex pattern on a website.
It returns status values that are Nagios compatible. This means you can write a command definition for Nagios that looks like this:
So a while a go I had a DNS issue that stumped me. A master nameserver transferring an updated zone to a slave successfully, but queries to the slave server not reflecting the change!
Finally I worked it out. We were implementing views, and we didn't need to be, as our use case was not a case of using different zone files for the same zone and responding accordingly with differing results depending on the requestor client and which acl it matched.
Here's a good one.
dns2 is primary nameserver for a local zone 'servers.datacentre.foo'. Running Debian Lenny, bind9, nothing unusual. Update this zone to add a Xen guest recently provisioned at the datacentre. Reload dns with rndc reload, the updated zone is transferred to the slave nameserver, which is dns1 (yeah I don't know why either, what's in a name).
I never noticed this until today, but it turns out htop has a little easter egg:
When your server hits over 100 days of uptime, htop congratulates you with a little exclamation point :)